CN111001706B - Stamping device for carrying out continuous stamping by adopting waste-free scrap-overlap continuous die - Google Patents

Stamping device for carrying out continuous stamping by adopting waste-free scrap-overlap continuous die Download PDF

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Publication number
CN111001706B
CN111001706B CN201911372417.XA CN201911372417A CN111001706B CN 111001706 B CN111001706 B CN 111001706B CN 201911372417 A CN201911372417 A CN 201911372417A CN 111001706 B CN111001706 B CN 111001706B
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Prior art keywords
plate
die
stamping
along
section
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CN111001706A (en
Inventor
廖俊凯
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Kunshan Jinrong Zhongchuan Hardware Co ltd
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Kunshan Jinrong Zhongchuan Hardware Co ltd
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Publication of CN111001706A publication Critical patent/CN111001706A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/08Dies with different parts for several steps in a process
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D19/00Flanging or other edge treatment, e.g. of tubes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/003Positioning devices

Abstract

The invention discloses a stamping device for continuously stamping by adopting a continuous die without waste scrap lapping, wherein a plurality of pairs of forming punches for respectively carrying out a plurality of stamping processes on raw materials are sequentially arranged below an upper die base along a feeding direction; the stamping die comprises an upper die base, a lower die base, an upper baffle plate, an upper stripper plate, a lower die plate and a lower bolster plate, wherein the upper die base is connected with a stamping mechanism, one side of the bottom of the upper die base is provided with an upper die insert block, the lower die plate comprises a first section plate and a second section plate which are sequentially arranged along a feeding direction, a cutting punch head is fixed at the bottom of the upper clamp plate right above the first section plate, a forming punch head is arranged at the bottom of the upper clamp plate right above the second section plate, the first section plate is fixedly provided with the second guide plate along the left-right direction, and the second section plate is fixedly provided with two first guide plates and a positioning block along the left-right direction.

Description

Stamping device for carrying out continuous stamping by adopting waste-free scrap-overlap continuous die
Technical Field
The invention relates to the technical field of stamping dies, in particular to a stamping device for carrying out continuous stamping by adopting a continuous die without waste material scrap lapping.
Background
Progressive die refers to a cold stamping die that uses a strip of stamping material to simultaneously perform multiple stamping operations at different stations on a single die in a single stamping stroke. And once the die finishes stamping, the material belt moves at a fixed distance until the product finishes stamping.
When the existing material is chamfered, the material is deformed in the forming process in a die, and redundant materials at the sharp corners at two ends flow to the place with gaps at the periphery under the action of pressure, so that the appearance of a cut surface is poor due to material accumulation, and the reject ratio is high; meanwhile, the existing die is inaccurate in material positioning, the product is prone to swing in the movement process, and product dislocation is prone to be caused by error accumulation in the propelling process of the product, so that the stamping precision is affected.
Disclosure of Invention
The invention aims to provide a stamping device for carrying out continuous stamping by adopting a continuous die without waste scrap lapping, so as to improve the material utilization, reduce the reject ratio and improve the processing quality.
In order to solve the technical problems, the invention provides the following technical scheme: the punching die comprises an upper die holder and a lower die holder, wherein a plurality of pairs of forming punches for respectively performing a plurality of punching processes on raw materials are sequentially arranged below the upper die holder along a feeding direction; an upper padding plate, an upper clamping plate, an upper baffle, an upper stripper plate, a lower template and a lower padding plate are sequentially arranged between the upper die base and the lower die base, the upper die base is connected with a stamping mechanism, an upper die insert block is arranged on one side of the bottom of the upper die base, the lower template comprises a first section plate and a second section plate which are sequentially arranged along the feeding direction, a cutting punch head is fixed at the bottom of the upper clamping plate right above the first section plate, a forming punch head is arranged at the bottom of the upper clamping plate right above the second section plate, a second guide plate is fixed on the first section plate along the left-right direction, two first guide plates and a positioning block are fixed on the second section plate along the left-right direction, a mold insert is arranged on the second section plate, each pair of female die and one male die which are in one-to-one correspondence with each forming punch head along the feeding direction, and a guide groove with the structure, grooves are formed in the left side and the right side of the guide groove; and a wedge side pushing block fixedly connected to the second section plate is arranged under the upper die inserting block, a spring rod is connected to the wedge side pushing block, and stop blocks fixedly connected to the second section plate are correspondingly arranged at two sides of the insert.
Furthermore, the first section plate is provided with a plurality of square material guiding needles along the left-right direction, and the second section plate is uniformly provided with a plurality of square material guiding needles along the front-back direction.
Furthermore, an inclined plane matched with the wedge side pushing block is arranged on one side of the upper die inserting block, and the distance for pushing the wedge side pushing block by the upper die inserting block is equal to the width of the raw material when the die is closed.
Further, the central distance between two adjacent female dies in the front-back direction of the insert and the central distance between the male die and each female die are integral multiples of the width of the raw material.
Furthermore, an outer guide pillar assembly is arranged between the upper die base and the lower die base, and one end, far away from the wedge side pushing block, of the spring rod is fixedly connected to the outer guide pillar assembly.
Furthermore, a plurality of lower cushion feet are arranged at the top of the lower die base.
Furthermore, the stamping device for continuously stamping the continuous die without the waste scrap lapping comprises a stamping mechanism and a feeder, wherein the stamping mechanism is in control connection with the continuous die without the waste scrap lapping; three groups of tungsten steel blade sets are arranged at the front end of the feeder in parallel, each tungsten steel blade set comprises two tungsten steel blades, and the knife edge of each tungsten steel blade is arc-shaped.
Compared with the prior art, the invention has the following beneficial effects:
1. the three tungsten steel blade sets are arranged at the front end of the feeder, and the raw materials are chamfered through the three tungsten steel blade sets, so that the quality problem of a product caused by an out-of-round and unsmooth section is easily solved;
2. the wedge side pushing block is utilized to change the feeding direction of the material, and the purpose of accurate feeding is achieved;
3. make full use of the structural feature of product to the product shaping appearance has been decided the direction of product at the feeding in-process as the guide way, prevents that the product from taking place horizontal hunting in the motion process, uses the hole of product as the locating hole, prevents the quality that the error in the feeding leads to bad.
4. The utilization rate of raw materials is improved, the waste is reduced, and the cost is saved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic overall elevational view of the present invention;
FIG. 2 is a schematic view of the insert installation of the present invention;
FIG. 3 is a schematic overall side view of the present invention;
FIG. 4 is a schematic view of the product forming process of each forming step of the present invention;
FIG. 5 is a schematic view of the installation of the feeder of the present invention;
FIG. 6 is a schematic view of the tungsten steel blade structure of the present invention;
in the figure: 1. an upper die holder; 2. an upper base plate; 3. an upper splint; 4. an upper baffle plate; 5. an upper stripper plate; 6. a lower stripper plate; 7. a lower template; 8. a lower base plate; 9. a lower die holder; 10. a lower foot pad; 11. an insert; 12. a guide groove; 13. forming a punch; 14. a first section of board; 15. cutting off the punch; 16. a tapered wedge side push block; 17. a spring lever; 18. a first material guide plate; 19. positioning blocks; 20. a stopper; 21. a male die; 22. a female die; 23. a square material guide needle; 24. a second segment plate; 25. a second material guide plate; 26. an upper die insert block; 27. an outer guide post assembly; 28. a feeder; 29. tungsten steel blade.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides the following technical solutions: a stamping device adopting a continuous die without waste material scrap lapping for continuous stamping comprises an upper die base 1 and a lower die base 9, wherein a plurality of pairs of forming punches 13 respectively used for carrying out a plurality of stamping processes on raw materials are sequentially arranged below the upper die base 1 along a feeding direction, an upper padding plate 2, an upper clamping plate 3, an upper baffle plate 4, an upper stripper plate 5, a lower stripper plate 6, a lower die plate 7 and a lower padding plate 8 are sequentially arranged between the upper die base 1 and the lower die base 9, the upper die base 1 is connected with a stamping mechanism, an upper die inserting block 26 is arranged on one side of the bottom of the upper die base 1, the lower die plate 7 comprises a first section plate 14 and a second section plate 24 which are sequentially arranged along the feeding direction, a cutting punch 15 is fixed at the bottom of the upper clamping plate 3 right above the first section plate 14, a second guide plate 25 is fixed on the first section plate 14 along the left and right direction, two first guide plates 18 and a positioning block 19 are fixed, the second section plate 24 is provided with an insert 11, each pair of female dies 22 and a male die 21 which are in one-to-one correspondence with each forming punch 13 are sequentially arranged on the insert 11 along the feeding direction, a guide groove 12 with the same structure as the middle part of the male die 21 is arranged on the insert 11, and grooves are arranged on the left side and the right side of the guide groove 12; a wedge side pushing block 16 fixedly connected to the second section plate 24 is arranged right below the upper die inserting block 26, a spring rod 17 is connected to the wedge side pushing block 16, and stop blocks 20 fixedly connected to the second section plate 24 are correspondingly arranged on two sides of the insert 11.
The distance between the cutting punch 15 and the positioning block 19 is twice the length of the cut product, so that the cut product can be conveniently pushed to be tightly attached to the positioning block 19. The raw materials in the first material guide plate 18 are intermittently pushed through a feeder 28, three groups of tungsten steel blades 29 are arranged on the feeder 28, the distance pushed by the feeder 28 each time is the same as the length of the cut product, and the feeding is performed once after the die opening of the die is completed, so that the continuous pushing of the cut product is facilitated.
The first section plate 14 is provided with a plurality of square material guiding needles 23 along the left-right direction, and the second section plate 24 is evenly provided with a plurality of square material guiding needles 23 along the front-back direction, so that the product is accurately guided by taking the middle hole of the product as a guide hole, and the cut product is conveniently guided by the square material guiding needles 23.
An inclined plane matched with the wedge side pushing block 16 is arranged on one side of the upper die inserting block 26, and when the die is closed, the distance for pushing the wedge side pushing block 16 by the upper die inserting block 26 is equal to the width of the raw material, so that the product in the first material guide plate 18 can push the front product to move, and the cut products can be pushed forward one by one.
The central distance between two adjacent female dies 22 along the front-back direction of the insert 11 and the central distance between the male die 21 and each female die 22 are integral multiples of the width of the raw material, so that each cut product accurately enters the male die 21 and each female die 22, multiple times of forming are facilitated, and the stamping forming precision is improved.
An outer guide pillar component 27 is arranged between the upper die holder 1 and the lower die holder 9, and one end, far away from the wedge side pushing block 16, of the spring rod 17 is fixedly connected onto the outer guide pillar component 27, so that the spring rod 17 can drive the wedge side pushing block 16 to return to the original position.
The top of lower bolster 9 is equipped with a plurality of lower bolster 10, improves the steadiness of mould.
The stamping device for continuously stamping the continuous die without the waste scrap lapping comprises a stamping mechanism which is in control connection with the continuous die without the waste scrap lapping, and a feeder 28; three groups of tungsten steel blade sets are arranged at the front end of the feeder 28 in parallel, each tungsten steel blade set comprises two tungsten steel blades 29, and the knife edge of each tungsten steel blade 29 is arc-shaped, so that chamfering work can be conveniently carried out on raw materials.
The working principle of the invention is as follows:
the raw material with holes is firstly chamfered in three tungsten steel blade sets at the front end of the feeder 28, chamfering of products is not carried out in a die, the material is not deformed in the chamfering forming process, the section of the raw material is a smooth fillet, the reject ratio is low, the utilization rate of the material is improved, and the cost is further saved; then the material passes through a feeder 28 and directly enters into the die, the raw material is guided by a second material guiding plate 25 on the first section plate 14, then the material is accurately guided by a square material guiding needle 23 on the first section plate 14, meanwhile, the material is cut by a cutting punch 15, the cut product is pushed into a second section plate 24 by the material fed in from the back, the product is pushed to be tightly attached to a positioning block 19 through the first material guiding plate 18, during die assembly, an upper die insert block 26 pushes a lower die wedge side push block 16 under the downward action of a punching mechanism to push the first product to move towards the direction close to the front side of the second section plate 24, a spring rod 17 is compressed, during die opening, the punching mechanism drives the upper die insert block 26 to move upwards, under the elastic action of the spring rod 17, the wedge side push block 16 returns to the original position, meanwhile, the next section product is pushed into the first material guiding plate 18 under the action of the pusher, during die assembly again, the first product moves the same distance with the width of the first product again and moves to the top of the male die 21, a pair of forming punch heads 13 above the first product performs first stamping on the first product, the middle section is stamped, then die assembly and die opening are repeated continuously, each time die assembly is performed, the product in the first material guide plate 18 is pushed by the wedge side push block 16 to move towards the direction close to the front side of the second section plate 24, and the product before the pushing moves, because the middle forming structure of the product is used as the structural shape of the guide groove, the product can move along the guide groove 12 under the action of the guide groove 12 and the square material guide needle 23, the left-right swing does not occur in the moving process, the remaining six stamping processes are performed continuously on the product along with continuous pushing of the product, the two ends of the product after each forming are located in the grooves at the bottom of the guide groove 12, and.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. The utility model provides an adopt no waste material scrap (bridge) continuous die to carry out stamping device of continuous punching press which characterized in that:
the continuous die without the waste scrap lapping comprises an upper die holder and a lower die holder, wherein a plurality of pairs of forming punches for respectively performing a plurality of stamping processes on raw materials are sequentially arranged below the upper die holder along a feeding direction; an upper backing plate, an upper clamping plate, an upper baffle, an upper stripper plate, a lower template and a lower backing plate are sequentially arranged between the upper die base and the lower die base, an upper die insert block is arranged on one side of the bottom of the upper die holder, the lower die plate comprises a first section plate and a second section plate which are sequentially arranged along the feeding direction, a cutting punch is fixed at the bottom of the upper clamping plate right above the first section of plate, the forming punch is arranged at the bottom of the upper clamping plate right above the second section of plate, the first section plate is fixed with a second material guide plate along the left-right direction, the second section plate is fixed with two first material guide plates and a positioning block along the left-right direction, the second section plate is provided with an insert which is sequentially provided with a pair of female dies and a male die which are in one-to-one correspondence with the forming punches along the feeding direction, the insert is provided with a guide groove with the same structure as the middle part of the male die, and the left side and the right side of the guide groove are provided with grooves; a wedge side pushing block fixedly connected to the second section plate is arranged right below the upper die inserting block, a spring rod is connected to the wedge side pushing block, and stop blocks fixedly connected to the second section plate are correspondingly arranged on two sides of the insert;
an inclined plane matched with the wedge side pushing block is arranged on one side of the upper die inserting block, and the pushing distance of the wedge side pushing block pushed by the upper die inserting block is equal to the width of the raw material when the die is closed;
the center distance of two adjacent concave dies along the front and back direction of the insert and the center distance of the convex die and each concave die are integral multiples of the width of the raw material;
the stamping device comprises a stamping mechanism and a feeder, wherein the stamping mechanism is in control connection with the continuous die without the waste scrap lapping; three groups of tungsten steel blade sets are arranged at the front end of the feeder in parallel, each tungsten steel blade set comprises two tungsten steel blades, and the knife edge of each tungsten steel blade is arc-shaped.
2. A press apparatus for continuous pressing using a scrap-free continuous die in accordance with claim 1, wherein: the first section plate is provided with a plurality of square material guiding needles along the left-right direction, and the second section plate is uniformly provided with a plurality of square material guiding needles along the front-back direction.
3. A press apparatus for continuous pressing using a scrap-free continuous die in accordance with claim 1, wherein: an outer guide pillar assembly is arranged between the upper die base and the lower die base, and one end, far away from the wedge side pushing block, of the spring rod is fixedly connected to the outer guide pillar assembly.
4. A press apparatus for continuous pressing using a scrap-free continuous die in accordance with claim 1, wherein: the top of the lower die base is provided with a plurality of lower foot pads.
CN201911372417.XA 2019-12-27 2019-12-27 Stamping device for carrying out continuous stamping by adopting waste-free scrap-overlap continuous die Active CN111001706B (en)

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CN201911372417.XA CN111001706B (en) 2019-12-27 2019-12-27 Stamping device for carrying out continuous stamping by adopting waste-free scrap-overlap continuous die

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Application Number Priority Date Filing Date Title
CN201911372417.XA CN111001706B (en) 2019-12-27 2019-12-27 Stamping device for carrying out continuous stamping by adopting waste-free scrap-overlap continuous die

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CN111001706B true CN111001706B (en) 2021-07-13

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112676451A (en) * 2020-12-07 2021-04-20 东风汽车有限公司 Overlap-free continuous stamping method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100586398B1 (en) * 2004-08-19 2006-06-09 에스아이티 주식회사 Progressive mold apparatus
KR20090009962U (en) * 2008-03-28 2009-10-01 한국단자공업 주식회사 Progressive mold
CN204429997U (en) * 2015-01-29 2015-07-01 无锡龙筠模具制造有限公司 The bending and molding progressive die
CN104759543A (en) * 2015-04-16 2015-07-08 浙江雅虎汽车部件有限公司 Automobile fixing seat progressive die
CN205926793U (en) * 2016-06-02 2017-02-08 常熟市创新模具有限公司 Progressive mould
CN206567408U (en) * 2017-03-10 2017-10-20 湖北德道汽车科技有限公司 A kind of continuous punching energy-absorption box diel
CN207521538U (en) * 2017-12-05 2018-06-22 四川永贵科技有限公司 A kind of progressive die automatic feeding

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100586398B1 (en) * 2004-08-19 2006-06-09 에스아이티 주식회사 Progressive mold apparatus
KR20090009962U (en) * 2008-03-28 2009-10-01 한국단자공업 주식회사 Progressive mold
CN204429997U (en) * 2015-01-29 2015-07-01 无锡龙筠模具制造有限公司 The bending and molding progressive die
CN104759543A (en) * 2015-04-16 2015-07-08 浙江雅虎汽车部件有限公司 Automobile fixing seat progressive die
CN205926793U (en) * 2016-06-02 2017-02-08 常熟市创新模具有限公司 Progressive mould
CN206567408U (en) * 2017-03-10 2017-10-20 湖北德道汽车科技有限公司 A kind of continuous punching energy-absorption box diel
CN207521538U (en) * 2017-12-05 2018-06-22 四川永贵科技有限公司 A kind of progressive die automatic feeding

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